*{
    padding: 0;
    margin: 0;
    box-sizing: border-box;
    list-style: none;
}
.add,.list{
    width: 1115px;
    margin: 0 auto;
}
.nav{
    background-color: #ccc;
    padding: 80px 0;
    text-align: center;
}
.nav h1{
    font-size: 50px;
    font-weight: 100;
    margin-bottom: 5px;
}
.add{
    margin-top: 35px;
    margin-bottom: 45px;
}
.add p,.list p{
    font-size: 30px;
    margin-bottom: 10px;
}
.add input,.add select,.add button{
    width: 255px;
    height: 37px;
    margin-right: 20px;
    border-radius: 2px;
    padding-left: 10px;
    border: 1px solid #cccccc;
}
.add button{
    background-color: #007bff;
    color: #fff;
    border: none;
    cursor: pointer;
}
.list .n{
    font-size: 16px;
    display: flex;
    border-bottom: 2px solid #dee2e6;
    border-top: 1px solid #dee2e6;
    padding: 10px 0;
    width: 100%;
}
.list p{
    margin-bottom: 10px;
}
.name{
    width: 495px;
}
.sex{
    width: 306px;
}
.age{
    width: 300px;
}
#list li{
    display: flex;
    padding: 10px 8px;
    border-bottom: 1px solid #dee2e6;
}

